MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Mirai


Vendor detections: 11


Intelligence 11 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf
SHA3-384 hash: 2007fd497d9d313fb45924da5784cf6641d312a566efc06d85b74981b724264603bf15016696af8ddf417c55f2374764
SHA1 hash: 364a627eeb8bfe7a6d34da5064c026c1118f59f7
MD5 hash: 5dd6d40df02fd238524e1933b8fd6fd0
humanhash: georgia-white-hotel-uncle
File name:titanjr.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:84'400 bytes
First seen:2026-01-31 18:36:57 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:ut/CxRjB9owk0aJihi6p2EuWzqfnrdbYnR2JqbJhVuAQ:E/GRN91XaVrsufnrdUnoQV9Q
TLSH T116833981BA4BC4F5D8474870806BF33FCB72E1394065D65EEF9BAF26DD23642621628D
telfhash t18731d5fb1a7e08e8a3d45840c30e1e62391ad77b256472f005b35835239be8255b5c3d
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
46
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/4afcfb82-7091-4f94-ac1a-1832f3470627/
Detection(s):
Unix.Trojan.Mirai-10056463-0
Create hunting rule

Unix.Trojan.Mirai-10058414-0
Create hunting rule

Unix.Trojan.Mirai-10058922-0
Create hunting rule

Unix.Trojan.Mirai-10059005-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/697e4c06930564ff3c80f69c/reports/ed409e0b-0c75-470a-9729-0146dd05c032/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
1
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ba1b796a-e3cb-479f-8fea-bcea0720c198
Behavior Graph:
Download SVG
%3 guuid=04f84f53-1800-0000-35f8-99a12e050000 pid=1326 /usr/bin/sudo guuid=f754d555-1800-0000-35f8-99a135050000 pid=1333 /tmp/sample.bin net guuid=04f84f53-1800-0000-35f8-99a12e050000 pid=1326->guuid=f754d555-1800-0000-35f8-99a135050000 pid=1333 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=f754d555-1800-0000-35f8-99a135050000 pid=1333->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=ae9ef655-1800-0000-35f8-99a136050000 pid=1334 /tmp/sample.bin guuid=f754d555-1800-0000-35f8-99a135050000 pid=1333->guuid=ae9ef655-1800-0000-35f8-99a136050000 pid=1334 clone guuid=a4beff55-1800-0000-35f8-99a137050000 pid=1335 /tmp/sample.bin write-config zombie guuid=ae9ef655-1800-0000-35f8-99a136050000 pid=1334->guuid=a4beff55-1800-0000-35f8-99a137050000 pid=1335 clone guuid=0e44af59-1800-0000-35f8-99a141050000 pid=1345 /usr/bin/dash guuid=a4beff55-1800-0000-35f8-99a137050000 pid=1335->guuid=0e44af59-1800-0000-35f8-99a141050000 pid=1345 execve guuid=0a21f05b-1800-0000-35f8-99a148050000 pid=1352 /tmp/sample.bin net send-data zombie guuid=a4beff55-1800-0000-35f8-99a137050000 pid=1335->guuid=0a21f05b-1800-0000-35f8-99a148050000 pid=1352 clone guuid=b461f559-1800-0000-35f8-99a142050000 pid=1346 /usr/bin/cp guuid=0e44af59-1800-0000-35f8-99a141050000 pid=1345->guuid=b461f559-1800-0000-35f8-99a142050000 pid=1346 execve guuid=0a21f05b-1800-0000-35f8-99a148050000 pid=1352->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con a1e7725d-cab9-5038-b4eb-fe816c44ed5e 77.90.185.212:19191 guuid=0a21f05b-1800-0000-35f8-99a148050000 pid=1352->a1e7725d-cab9-5038-b4eb-fe816c44ed5e send: 18B guuid=ca87f75b-1800-0000-35f8-99a14a050000 pid=1354 /tmp/sample.bin guuid=0a21f05b-1800-0000-35f8-99a148050000 pid=1352->guuid=ca87f75b-1800-0000-35f8-99a14a050000 pid=1354 clone guuid=c212fc5b-1800-0000-35f8-99a14b050000 pid=1355 /tmp/sample.bin guuid=0a21f05b-1800-0000-35f8-99a148050000 pid=1352->guuid=c212fc5b-1800-0000-35f8-99a14b050000 pid=1355 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eb93445b-c026-4ec0-8f2d-02c7dc1ac203
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1861008
Signature
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1861008 Sample: titanjr.i686.elf Startdate: 31/01/2026 Architecture: LINUX Score: 68 30 77.90.185.212, 19191, 60516 M247GB Germany 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 10 titanjr.i686.elf 2->10         started        signatures3 process4 process5 12 titanjr.i686.elf 10->12         started        process6 14 titanjr.i686.elf 12->14         started        file7 28 /etc/init.d/sysd, POSIX 14->28 dropped 36 Sample tries to set files in /etc globally writable 14->36 38 Drops files in suspicious directories 14->38 40 Sample tries to persist itself using System V runlevels 14->40 18 titanjr.i686.elf sh 14->18         started        20 titanjr.i686.elf 14->20         started        signatures8 process9 process10 22 sh cp 18->22         started        24 titanjr.i686.elf 20->24         started        26 titanjr.i686.elf 20->26         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-31 18:38:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54ul76odvqdlx5delsiv7a4r4s2jfpze5ejidge53fh7vqpa7lhq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery linux persistence
Link:
https://tria.ge/reports/260131-w9p1nsft9e/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Malware Config
C2 Extraction:
77.90.185.212
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
Link:
https://yomi.yoroi.company/submissions/ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Trojan_Mirai_0cb1699c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_485c4b13
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf ef28bff9c3ac06bbf4645c915f8391e4b492bf24e91281989dd94ffac1e0facf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3766779/
  
Delivery method
Distributed via web download

Comments